Recent content by Freeq

Nelson 12 Physics. It looks like they used formula for electric force, but not energy. However, I still think it is a good book.

3. Two electrons are fired at 3.5x10^6 m/s directly at each other. (a) Calculate the smallest possible distance between the two electrons. (b) Is it likely that two electrons in this situation will actually get this close to each other if the experiment is performed? Explain your answer...

I forgot to fiinish this so, m2= Ft/(g-a) m2=74.88/(9.8-4.6) m2=14.4kg BTW: I goofed on the picture - I wrote the mass of smaller object 5.3kg which it should be m1 5.2kg Then I want to prove you AGAIN that this is right, by using the formula you mentionied in your post above. a=...

ok I am going to teach you a bit of physics, the greater the downward force of gravity on the object, the greater the upward tension in the rope. In other words, the more the material is stretched, the greater the tension in the material. Now let's apply this to my assigmnent question : the...

Not really, because when you think about tension of the rope, you need to add two opposite forces (or substract two forces in the same direction), and even if it should be mg-ma, and this is equation for the bigger mass. Which grade are you in? :D

That's what I did. According to Newton's law the forces need to be equal on boths sides. (Left side) Ft=m1g+m1a Ft=(5.2x9.8)+(5.2x4.6) Ft=74.88N Then I can sub in Ft into the second equation. (Right side) Ft=m2g-m2a Ft=m2(g-a) When I want to check it, it works perfectly...

Homework Statement Smaller mass on an Atwood machine is 5.2 kg (m1). If the mass accelerates at 4.6 m/s2what is the mass of the object? What is the tension of the rope? Homework Equations a = g(m2-m1)/(m2+m1) The Attempt at a Solution I can't approach this questions, because we...